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21. 发明专利

JPH11240182A INK LIQUID TOUCHING MEMBER, INK-ABSORBING BODY, INK TANK, INK-JET CARTRIDGE, AND INK-JET RECORDING APPARATUS 失效
公开(公告)号：JPH11240182A
公开(公告)日：1999-09-07
申请号：JP36545498
申请日：1998-12-22
申请人： CANON KK
发明人： HAYASHI KOKI , SHIMIZU EIICHIRO , YAMAMOTO HAJIME
IPC分类号： B41J2/175 , C08K3/26 , C08L23/02
摘要： PROBLEM TO BE SOLVED: To improve resistance to ink touch performance by forming an ink connection member of a member which is in touch with ink used in an ink-jet recording apparatus of a material mainly consisting of polyolefin obtained by adding a hydrotalcite compound as a neutralizer. SOLUTION: Ink-absorbing bodies 1a-1c in an ink tank 5 of an ink-jet cartridge 100 are formed by compressing a composite fiber in which a polypropylene core part is surrounded by a polyethylene sheath part by a weight ratio of 1:1 in conformity with a shape of each chamber in a casing 2 and thermally molding a surface. The sheath part preferably mainly consists of polyolefin obtained by adding a hydrotalcite compound as a neutralizer. The hydrotalcite compound is a nonstoichiometric compound expressed by [A1-x Dx (OH)2 ] [Ex/n H2 O] wherein A is a divalent metal, D is a trivalent metal and E is an n-valent anion.

22. 发明专利

JP2003145790A INK JET RECORDER 审中-公开
公开(公告)号：JP2003145790A
公开(公告)日：2003-05-21
申请号：JP2001344834
申请日：2001-11-09
申请人： CANON KK
发明人： MATSUO KEISUKE , HATTORI SHOZO , HAYASHI KOKI , OKUHARA HIROFUMI , KUSUSHIRO TATSUO
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To supply ink stably between a recording head and an ink tank without relying upon the pressure difference. SOLUTION: A signal for delivering ink is also inputted to an ink supply means in order to control the ink supply means.

23. 发明专利

JP2002331683A INK TANK 失效
公开(公告)号：JP2002331683A
公开(公告)日：2002-11-19
申请号：JP2001139909
申请日：2001-05-10
申请人： CANON KK
发明人： KITAHATA KENJI , KOTAKI YASUO , TAKAHASHI WATARU , MATSUO KEISUKE , HAYASHI KOKI
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To obtain an ink tank containing an ink absorber in a polyhedral containing case in which the ink containing efficiency is enhanced without lowering the service efficiency of ink. SOLUTION: An ink absorber 120 for holding ink is contained in a case 110 constituting an ink tank. A plurality of ribs 101 are formed on two opposite inner wall faces of the case 110 having the largest area, and spaces becoming ventilation passages 150 for feeding air uniformly into the case 110 are defined by the ribs 101. The ribs 101 formed on one inner wall face of the case 110 are arranged at positions not facing the ribs 101 formed on the other inner wall face. Consequently, the density of the ink absorber is made uniform in the case 110 and the number of the ribs 101 can be decreased.

24. 发明专利

JP2002331682A INK TANK AND METHOD FOR INJECTING INK THEREINTO 失效
公开(公告)号：JP2002331682A
公开(公告)日：2002-11-19
申请号：JP2001139901
申请日：2001-05-10
申请人： CANON KK
发明人： MATSUO KEISUKE , KITAHATA KENJI , HAYASHI KOKI , KOTAKI YASUO
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To enhance service efficiency regardless of the type of ink or ink absorber by controlling the distribution state of ink. SOLUTION: After a container 2 is decompressed by means of a vacuum pump 15, an on/off valve 13 is opened and ink is injected from an ink supply means 14. When a specified quantity of ink is injected, the ink is absorbed by an ink absorber 1 and stays in a buffer space 7. When the on/off valve 13 is closed and an opening 5 communicating with the atmosphere is opened, air in the ink absorber 1 expanded through pressure reduction is contracted, the ink in the buffer space 7 is sucked into the ink absorber 1, and the ink in the vicinity of the outer surface of the ink absorber 1 moves inward. A part of the ink absorber 1 touching a shield member 8 is shielded by a shield member 8 and, since the ink does not permeates that part, that part is not wetted with ink. The ink absorber 1 includes a region 11 which absorbed the ink sufficiently, a region 16 holding the ink slightly, and a region 12 unwetted with ink. Interface 9 of the ink is substantially horizontal and ensures a good distribution state of the ink.

25. 发明专利

JP2002331681A LIQUID CONTAINER 失效
公开(公告)号：JP2002331681A
公开(公告)日：2002-11-19
申请号：JP2001139900
申请日：2001-05-10
申请人： CANON KK
发明人： TAKAHASHI WATARU , HAYASHI KOKI , MATSUO KEISUKE , KOTAKI YASUO , YASUMA HIROMASA , KITAHATA KENJI
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To supply ink surely and stably from an ink supply opening even when the flow rate of ink is high by ensuring a large opening area of the ink supply opening when it is provided at such a part as the tank width cannot be ensured sufficiently. SOLUTION: A second negative pressure generating member 1 is contained in a substantially rectangular parallelepiped ink containing section 2 and disposed between a first negative pressure generating member 3 and a plane forming an ink supply opening 4. The rectangular parallelepiped second negative pressure generating member 1 has a width equal to the width between the inner wall faces becoming the maximum area plane of the ink containing section 2. The rectangular parallelepiped second negative pressure generating member 1 is surrounded by a guide 5 comprising the two opposite inner wall faces becoming the maximum area plane of the ink containing section 2, and two opposite and parallel inner wall faces provided substantially perpendicularly to the ink supply opening plane while intersecting the two opposite inner wall faces.

26. 发明专利

JP2002200773A INK TANK, INK JET CARTRIDGE, INK FEED UNIT, INK JET RECORDER, AND INK FEED METHOD 失效
公开(公告)号：JP2002200773A
公开(公告)日：2002-07-16
申请号：JP2000403328
申请日：2000-12-28
申请人： CANON KK
发明人： OKAMOTO HIDEAKI , NEZU YUSHI , HIRANO HIROFUMI , KURATA TETSUJI , ARA YOJI , FUKAZAWA HIDEO , INOUE HIROYUKI , UETSUKI MASAYA , ASAKI NORIYASU , HAYASHI KOKI
IPC分类号： B41J2/175 , B41J2/165 , B41J2/18 , B41J2/185
摘要： PROBLEM TO BE SOLVED: To surely replenish ink to an ink tank by a simple constitution, and make a recorder compact, light-weight and improved in reliability. SOLUTION: Ink can be taken into the ink tank 20 through an ink intake port 20b by a negative pressure introduced inside the ink tank from a total suction port 53. A suction port of each ink tank 20 is provided with a gas transmission member 48 which passes a gas without passing the ink, and an ink replenishment device part 3 whereby the ink can be taken into the ink tank 20 from the ink intake port by the negative pressure introduced inside via the gas transmission member 48. The gas transmission member 48 communicates with the atmosphere except when the ink is taken into the ink tank.

27. 发明专利

JP2002178544A LIQUID CONTAINER, AND METHOD FOR UNCOUPLING LIQUID CONTAINER 审中-公开
公开(公告)号：JP2002178544A
公开(公告)日：2002-06-26
申请号：JP2001287156
申请日：2001-09-20
申请人： CANON KK
发明人： KOSHIKAWA HIROSHI , YAMAMOTO HAJIME , HATTORI SHOZO , SHIMIZU EIICHIRO , HAYASHI KOKI , KITAHATA KENJI
IPC分类号： B41J2/18 , B41J2/175 , B41J2/185
摘要： PROBLEM TO BE SOLVED: To provide a liquid container which can be mounted/dismounted without causing any dripping of liquid and exhibiting a high liquid containing efficiency and excellent handling performance. SOLUTION: An ink tank unit 200 comprises an ink container 201 having an inner bag 220 containing ink being fed to a recording head, a joint port 230 for supplying ink to the recording head when the joint pipe thereof is inserted, and a member 255 for absorbing ink adhering to the joint port 230 into a space different from the inner bag 220. The ink reabsorbing member 255 has an ink absorbing region 255a adjacent to the joint port 230, and a region 255b for storing ink absorbed into the ink absorbing region 255a. Capillary force of the ink storage region 255b is higher than that of the ink absorbing region 255a.

28. 发明专利

JP2002160386A INK TANK, INK JET RECORDING UNIT, INK FILLING METHOD AND INK JET RECORDING DEVICE 审中-公开
公开(公告)号：JP2002160386A
公开(公告)日：2002-06-04
申请号：JP2001355405
申请日：2001-11-20
申请人： CANON KK
发明人： HIRANO HIROFUMI , KURATA TETSUJI , ARA YOJI , FUKAZAWA HIDEO , INOUE HIROYUKI , UETSUKI MASAYA , HAYASHI KOKI , ASAKI NORIYASU , NEZU YUSHI , OKAMOTO HIDEAKI
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To surely supply ink into an ink tank by a simplified composition, downsize and lighten a recording unit, and enhance the reliability of the recording unit. SOLUTION: When the ink tank 20 is to be fully filled with ink, the ink is brought into contact with a gas transmission member 48. The ink tank 20 is tilted after the termination of the complete filling of the ink. Consequently, the ink is kept from contact with the member 48.

29. 发明专利

JP2001162824A LIQUID STORING CONTAINER, FIBER MATERIAL USED THEREFOR, LYOPHILIC METHOD FOR THE FIBER MATERIAL, PRODUCTION METHOD FOR THE FIBER MATERIAL, SURFACE IMPROVING METHOD FOR THE FIBER MATERIAL, AND LIQUID CONTACT SURFACE STRUCTURE OF THE FIBER 失效
公开(公告)号：JP2001162824A
公开(公告)日：2001-06-19
申请号：JP34691499
申请日：1999-12-06
申请人： CANON KK
发明人： HAYASHI KOKI , SANADA MIKIO , SUGAMA SADAYUKI , SHIMIZU EIICHIRO , YAMAMOTO HAJIME , HATTORI SHOZO , KOSHIKAWA HIROSHI , KITAHATA KENJI
IPC分类号： B41J2/175 , D06M13/51 , D06M13/513 , D06M15/647 , D06M101/00 , D06M101/16 , D06M101/18
摘要： PROBLEM TO BE SOLVED: To provide a fiber material capable of providing the ink supply property compatible with various inks and high speed printing as well as facilitating the ink ejection, and a liquid storing container having the same. SOLUTION: An ink tank 1 is provided with a PP fiber material (the sectioned part in the figure) 2 as a negative pressure generating member with respect to an ink-jet head for recording by ejecting a liquid over the substantially the entirety of the inside such that the liquid to be supplied to the ink-jet head is sustained by the PP fiber material 2 for storage. An atmosphere communication opening 3 is provided on the upper end of a tank housing. Moreover, an entangled PP fiber with the surface processed by a hydrophilic treatment is used as the PP fiber material 2.

30. 发明专利

JP2001063098A LIQUID STORAGE CONTAINER, VALVE MECHANISM USED FOR THE SAME AND LIQUID SUPPLY CONTAINER 失效
公开(公告)号：JP2001063098A
公开(公告)日：2001-03-13
申请号：JP2000116778
申请日：2000-04-18
申请人： CANON KK
发明人： KOSHIKAWA HIROSHI , SHIMIZU EIICHIRO , HATTORI SHOZO , HAYASHI KOKI , KITAHATA KENJI , YAMAMOTO HAJIME
IPC分类号： B41J2/175 , B65D83/00
摘要： PROBLEM TO BE SOLVED: To secure an open area and surely supply a recording liquid even when a supply opening is formed in a side face where a sufficient width cannot be secured. SOLUTION: An ink tank unit 200 includes an ink storage container 201 for storing ink, and an ID member 250 for preventing wrong setting when the ink storage container 201 is set to an ink supply destination. A valve mechanism comprised of a first valve frame 260a, a second valve frame 260b, etc., is fitted to an opening set to a side face of the ink storage container 201. The ink in the ink storage container 201 is supplied outside via a joint opening 230 of the valve mechanism. An open shape of the joint opening 230 is elliptic.

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